Is there any difference between architectural plans and engineering plans?

An architectural plan is a plan for architecture, and the documentation of written and graphic descriptions of the architectural elements of a building project including sketches, drawings and details.
An engineering drawing, a type of technical drawing, is used to fully and clearly define requirements for engineered items.

Achitectural plans are pranch of Engineering plans.

yes sure, Engineering plans are a general thing as michanical ,electrical etc....architectual plans spacified for architect drawings.